/*
 * Copyright 2009-2020 Tilmann Zaeschke
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.zoodb.internal.util;



/**
 * This class does nothing else but turning an {@code Iterator<? extends T>} into 
 * {@code Iterator<T>}.
 * 
 * @author Tilmann Zaschke
 *
 * @param <T> The element type
 */
public class IteratorTypeAdapter<T> implements CloseableIterator<T> {

	private final CloseableIterator<? extends T> iter;
	
	public IteratorTypeAdapter(CloseableIterator <? extends T> iter) {
		this.iter = iter;
	}
	
	@Override
	public boolean hasNext() {
		return iter.hasNext();
	}

	@Override
	public T next() {
		return iter.next();
	}

	@Override
	public void remove() {
		iter.remove();
	}

	@Override
	public void close() {
		iter.close();
	}
}
